Electromagnetic hydrocarbon accelerator



Aprfii 8, 193.. J. B. NEWTON ELECTROMAGNET I C HYDROCARBON ACCELERATOR Filed Feb. 25, 1927 2 Sheets-Sheet INVENTOR.

April 1930, C J. B. NEWTON 197535517 ELECTROMAGNETIC HYDRGCARBON ACCELERATOR Filed Feb.'23, 1927 2 Sheets-Sheet 2 IN VEN TOR.

Patented Apr. 8, 1930 r PATENT OFFICE r Josmn B. NEWTON, OFROSEVILLE, ceirronm ELECTROMAGNETIC nYni ocARBon AccELnnA'roa Application filed February 23, 1927. serial' No. 170,167.

Thisinvention relates to an electro-magnetic accelerator foigexplosion engines, and is especially adapted engines used in power shovel Work, although it is equally well useable for many otherpurposes where a number of different movements are to be carried out by the engine, and a number of different levers provided for that purpose. It will be understood by those skilled in the art that in the operation of a shovel, for example, that the engine must be capable of raisin" the shovel against a heavy load 1t must %e capable of raising the shovel stick, as well as lowering the same downwardly to push the shovel into thebank, and at the same time the a paratus must be-useable for the purpose 0 turning the shovel in one direction or the other; I 7

Still other levers are provided for carrying out other objects, but t ese are the principal ones, and they are the-ones which ordinarily require a considerable increase in power to operate the shovel with sufiicient rapidity to accomplish the desired work. 1

It will also be understood. by those skilled in the art'that the engineer havin a number of levers and pedals to operate, convenient to also operate the engine accelerator so that ordinarily a governor of some kind is providedto permit the engine to run at a minimum rate of speed, and when he wishes to raise a load electrical means operate upon the governor to increase the power generated to operate the engine at a much 5 greater speed under the desired additional load. So that in the present case the operator has nothing to do but operate the clutch levers for the desired operation of the shovel, whereupon the desired acceleration, be it much or little, is effected during the time the clutches are in operation.

Other objects of the invention'will be ap parent as the description proceeds.

.An embodiment of the invention is shown in the accompanying drawings in which the same reference numeral is appliedto the same portion throughout the several figures of the drawings and of which there may be modifications. 5 Figure 1 is a side elevation of the complete ds it in shovel with the engine hoist and operating levers diagrammatically illustrated, and

.Figure 2 is a diagrammatic view showing the arrangement of the governor and electricaL system for operating the speed of the shov l. y

In the present instance the shovel is mount- I ed upon a truck 1, and has the endless tread 2 for supporting it, and for the purpose of advancing it over the ground. The'secondary truck 3 is revolubly mounted on the truck 1, and it has a ring 4 which engages with the pinion ring 5 to rotate thetable 3'whenever necessary. I

The pinion 5 engages with the pinion 4, and isrotated from the engine 6 whenever it may be necessary, as will a little later be explained.

- The engine has the governor 7, which acts on the butterfly valve 9 to keep the engine 6 running at about 1,000 or -1,1()O revolutions per minute. The table 3 supports the hoisting drums 1011 and 1,2, the object being to raise orlower the bucket stick 13,- while suitable other mechanism is provide'dvfor turnin the table 3 and hoisting the bucket directly rom the boom 14.

The cable 15 passes over a pulley 16 and around a pulley 17 at the end of the boom 14:, this hoisting being cfi'ected by hand. The .80 cable 16' passes from the drum 10 to, and around a suitable set of pulleys 22 at the end of the boom 14, and then around a pulley 23 carried by the bail of the bucket 24:.

The bucket or shovel, has a door carried by the arm 25 and the latch chain 26 is connected at one end to the latch which holds the door 25 closed, and at the other end to a lever 27 knownas the release lever, which is p'ivota'lly' mounted on the stick 13 at 28, and connected at the Other end to a cable 29 which passes in reach of the operator, thus enabling the shovel tobe discharged when? ever it is necessary.

On the boom 14 there is a'drum 30 which 95 drum is turned in reverse directions by pulling upon the two cables 31 and 32 at different times, thereby either crowdin the bucket against the bank, or lifting the ucket up by raising. the stick, at the same time the cable 16 9 wardly extending portion as indicated at arate from each other may be wound up on the drum 10 after passing under the pulle 23, and over the pulley 22 several times. T e precise manner of connecting the operating clutches which drive the several drums from the three operating levers 35, 36 and 37 forms no part of the in vention, further than to say that the lever 35 is pushed forward to cause the pinion 5 to so rotate as to swing the supporting table 3 to the left while it is. pulled back to swing the supporting table to the right. The lever 36 is pushed forward to pull up on the shovel stick and pulled back to crowd the shovel stick down while the lever 37 is pulled back to hoist on the cable 162 These levers are loosely mounted upon a single shaft 38' on the platform 3, and they are shown sep Y in Figure 2 for purposes of illustration. It will be seen that each lever has a down- 35 -36 and 37 "which parts carry electrical connections 38-39 and 40 for the purpose of com' leting the circuit through a solenoid 41.

T e manner of operation of the electrical part of the apparatus and its several parts is as follows: The electrical connection 38 carried by the arm 35 is capable of contacting with two connections 42--43.in turn consolenoid 41. The electrical connection 39 is capable of contacting with the electrical conthe valve 9 in the inlet passage 60 of the nections 47-48, which are in turn connected by means of the wire 49 through a given resistance 50 and wire 51 to the wire 46 leading to the solenoid 41. The electrical connection 40 is capable of connectin .the two electrical connections 52,53, one 0 which extends to the wire 46 without any resistance wire, the other is connected to the wire 54 leading to the battery 55, said battery also having a Wire 56 leading to the solenoid 41. i

Since the ex losion en he is maintained at a given num er ofrevo utions per minute (say about 1,000 or 1,100? by the governor 7, it is necessary to prompt y accelerate the en- "gine as soon as any additional demand is placed thereon, and 'thisacceleration 'isattained by connecting the solenoid by means of a suitable link 57 with the lever'58, which lever is connected to'the shaft 59 supporting carburetor, or engine inlet manifold.

Since'the-two levers 35 and 36 operate the swing and shovel stick handlin parts of the mechanism, not very-much ad ltional power is instantly required of the engine so that the resistances and are made sufficient to reduce the pulling power of the solenoid 41 on its core 61, but as the power. required of the hoisting device'is the greatest the engine is capable of givin the connections 46, 52, 53 and 54 to the .so enoid are made as direct as possible so as to give the solenoid its full.

pulling power, and thereby enable the engine to be instantly accelerated whenever the bucket hoist is tooperate. Similarl if the crowding lever is first operated, and t e lever 37 is operated the only effect will be to give the greatest pulling effect on the solenoid 41 and thereby most promptly acceleratethe engine.

With this arrangement it is possible to permit the engine to run at the proper speed without having the engineer himself operate the engine throttle thereby making it possible for him to be much more expeditious in handling the shovel and to make possible the more rapid manipulation of the shovel in everyone of its movements.

' It will be apparent to those skilled in the art that the two resistances 45 and 50 are experimentally determined to give the necessary pulling effect on the armature 61 to move the valve just as may be necessary for the power required, and the same, thing is true with respect to the operation of the engine through the control of the circuit 52 and 53.

The operation of the apparatus is as follows: Assuming the operator to wish to turn the shovel, he will operate the lever 35 to 44, resistance 45 and to the coil 41 to increase,

the acceleration of the engine slightly, the governor 7- acting upon the lever 58 the same as the solenoid 41 acts upon the core 61', that is when the solenoid 61 pulls up, the valve 5 will tend to open and would open except for the counter eflect of the governor. withstanding this counter effect, the balanc- But not-' ing of the governor isso nice that the interference therewith of the solenoid 41 will rapidly accelerate the engine. No very considerable amount of power is required to .crowd or lift the shovel stick, hence a resistance 50 is employed in the circuit 49-51 and 46 to'the solenoid 41 and hence'the-resistance 50 will "not permit the solenoid to act upon the core very heavily. The greatest power of the engine is required when lever 37 is so operated there is no resistance in the circuit leading tov the solenoid 41, and that its greatest effect can be made use of at 1. In a device of the class described, a'power shovel, an engine, and control means for the diiferent operations of said shovel, a slow speed governor for said engine, a series of electrical circuits operated by said control means, adapted to act ons aid slow -speed gover'nor to increase the acceleration of the engine in difierent degree for each of saidcon- -trol means,

2. An apparatus of the class described, comprising a power shovel, an engine and mechanism for the different operations of said V'shovel, levers for controlling said operatihns,

a slowspeed governor for said engine, an

1 electrical circuit for each of said levers,

. {adapted to accelerate the engine at different "speeds for'eachoperation of said shovel. In testimony whereof I have hereunto set hand thisth day of February, A. D.

, JOSEPH B. NEWTON.

so I 

